Finding the Fourth Proportional to 1,431,095.36, 1,974,956.04 and 786,503.84
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Solution
The fourth proportional to 1,431,095.36, 1,974,956.04 and 786,503.84 is: 1,085,399.72
Step by Step Solution
- Step 1: Write the proportion equation
1,431,095.36 : 1,974,956.04 = 786,503.84 : x - Step 2: Convert to fraction form
1,431,095.36/1,974,956.04 = 786,503.84/x - Step 3: Cross multiply
1,431,095.36x = 1,974,956.04 × 786,503.84 - Step 4: Simplify right side
1,431,095.36x = 1,553,310,509,291.19 - Step 5: Solve for x
x = 1,553,310,509,291.19/1,431,095.36 - Step 6: Final answer
x = 1,085,399.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.